[零基础学JAVA]Java SE实战开发-37.MIS信息管理系统实战开发[JDBC](2)

package org.michael.demo.menu;    
import org.michael.demo.operate.PersonOperate;    
import org.michael.demo.operate.StudentOperate;    
import org.michael.demo.operate.WorkerOperate;    
import org.michael.demo.util.InputData;    
public  class Menu {    
         private InputData input =  null;    
         private PersonOperate po =  null;    
         private  boolean sflag =  true;    
         private  boolean wflag =  true;    
         // 菜单要有增加信息、修改信息等的功能，增加信息的时候要选择是增加学生还是工人    
         public Menu() {    
                 this.input =  new InputData();    
                 while ( true) {    
                         this.showMain();    
                }    
        }    
         // 显示主菜单    
         public  void showMain() {    
                System.out.println( "                    学校信息管理程序                            ");    
                System.out.println( "                    1、学生信息管理                             ");    
                System.out.println( "                    2、工人信息管理                             ");    
                System.out.println( "                    3、退出系统                                     ");    
                 // 要进行选择    
                System.out.println( "\n\n 请选择所要的操作：");    
                 switch (input.getInt()) {    
                 case 1: {    
                         this.sflag =  true;    
                         while (sflag) {    
                                 this.showStudent();    
                        }    
                         break;    
                }    
                 case 2: {    
                         this.wflag =  true;    
                         while (wflag) {    
                                 this.showWorker();    
                        }    
                         break;    
                }    
                 case 3: {    
                        System.out.println( "系统退出，拜拜~~~") ;    
                        System.exit(1);    
                         break;    
                }    
                 default: {    
                        System.out.println( "            选择错误，请重新选择！");    
                         break;    
                }    
                }    
        }    
         // 显示学生操作的菜单    
         public  void showStudent() {    
                 this.po =  new StudentOperate();    
                System.out.println( "                        学生信息管理                                 ");    
                System.out.println( "                     1、增加学生信息                             ");    
                System.out.println( "                     2、列出全部学生信息                     ");    
                System.out.println( "                     3、查询学生信息                             ");    
                System.out.println( "                     4、删除学生信息                             ");    
                System.out.println( "                     5、修改学生信息                             ");    
                System.out.println( "                     6、返回上一级菜单                         ");    
                System.out.println( "\n\n请选择具体的操作：");    
                 switch ( this.input.getInt()) {    
                 case 1: {    
                         this.po.add();    
                         break;    
                }    
                 case 2: {    
                         this.po.findAll();    
                         break;    
                }    
                 case 3: {    
                         this.po.findByLike();    
                         break;    
                }    
                 case 4: {    
                         this.po.delete();    
                         break;    
                }    
                 case 5: {    
                         this.po.update();    
                         break;    
                }    
                 case 6: {    
                         this.sflag =  false;    
                         break;    
                }    
                 default: {    
                        System.out.println( "            选择错误，请重新选择！");    
                         break;    
                }    
                }    
        }    
         // 显示工人操作的菜单    
         public  void showWorker() {    
                 this.po =  new WorkerOperate();    
                System.out.println( "                        工人信息管理                                 ");    
                System.out.println( "                     1、增加工人信息                             ");    
                System.out.println( "                     2、列出全部工人信息                     ");    
                System.out.println( "                     3、查询工人信息                             ");    
                System.out.println( "                     4、删除工人信息                             ");    
                System.out.println( "                     5、修改工人信息                             ");    
                System.out.println( "                     6、返回上一级菜单                         ");    
                System.out.println( "\n\n请选择具体的操作：");    
                 switch ( this.input.getInt()) {    
                 case 1: {    
                         this.po.add();    
                         break;    
                }    
                 case 2: {    
                         this.po.findAll();    
                         break;    
                }    
                 case 3: {    
                         this.po.findByLike();    
                         break;    
                }    
                 case 4: {    
                         this.po.delete();    
                         break;    
                }    
                 case 5: {    
                         this.po.update();    
                         break;    
                }    
                 case 6: {    
                         this.wflag =  false;    
                         break;    
                }    
                 default: {    
                        System.out.println( "            选择错误，请重新选择！");    
                         break;    
                }    
                }    
        }    
}